519 citations · 5.3k across the 153 of their papers we have counts for
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A Spectroscopic and Photometric Study of the Metal-Poor, Pulsating, Post-AGB Binary HD 46703
Bruce J. Hrivnak, Hans Van Winckel, Maarten Reyniers +3
The metal-poor post-AGB star HD 46703 is shown to be a single-line spectroscopic binary with a period of 600 days, a high velocity of -94 km/s, and an orbital eccentricity of 0.3.…
Spectroscopic and photometric variability of the O9.5Vp star HD93521
G. Rauw, M. De Becker, H. van Winckel +7
The line profile variability and photometric variability of the O9.5 Vp star HD93521 are examined in order to establish the properties of the non-radial pulsations in this star. Fo…
The ERE of the "Red Rectangle" revisited
Hans Van Winckel, Martin Cohen, Ted R. Gull
We present in this paper high signal-to-noise long-slit optical spectra of the Extended Red Emission (ERE) in the "Red Rectangle" (RR) nebula. These spectra, obtained at different…
The very lithium rich post-AGB SB2 binary HD172481
Maarten Reyniers, Hans Van Winckel
Double lined spectroscopic binaries in an evolved stage of evolution are expected to be extremely rare since they must consist of equally luminous and thus almost equally evolved o…
HD172481: a super lithium-rich metal-deficient post-AGB binary with a red AGB companion
Maarten Reyniers, Hans Van Winckel
We present in this paper a study on the peculiar supergiant HD172481. Its spectral type (F2Ia), high galactic latitude (b=-10.37), circumstellar dust, high radial velocity and mode…
A homogeneous study of the s-process in the 21mic carbon-rich post-AGB objects
H. Van Winckel, M. Reyniers
We present in this paper a homogeneous photospheric abundance study, on the basis of the analysis of high resolution optical spectra, of six post-AGB objects displaying a 21mic cir…